I've dug up a section of sewer line that has root intrusion to have access for relining and I want to know the recommended material to fill around the pipe to reduce the chance of future root intrusion. The pipe is 4" clay and I notice the joints where two are connected has a cement material and this is the vulnerable joint where roots enter the pipe. Is it a bad idea pouring salt around the joints? Any tricks of the trade before I refill the trench?
Refilling trench for sewer line
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